X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Fsupport%2Funicode.cpp;h=b48f10609f7fe9315e257575aec432b9d8fcb1dc;hb=f3ff5e083a6e89861db5fce9eea4532504f8341d;hp=26c6a239d759d5a355712ccccadb6afa0839092c;hpb=9b9a3cf0c001d25c07056f37b3ccfd8025eefbcf;p=lyx.git

diff --git a/src/support/unicode.cpp b/src/support/unicode.cpp
index 26c6a239d7..b48f10609f 100644
--- a/src/support/unicode.cpp
+++ b/src/support/unicode.cpp
@@ -14,6 +14,7 @@
 
 #include "support/unicode.h"
 #include "support/debug.h"
+#include "support/mutex.h"
 
 #include <iconv.h>
 
@@ -25,6 +26,7 @@
 #include <ostream>
 #include <string>
 
+
 using namespace std;
 
 namespace {
@@ -64,6 +66,8 @@ struct IconvProcessor::Impl
 	iconv_t cd;
 	string tocode_;
 	string fromcode_;
+
+	Mutex mutex_; // iconv() is not thread save, see #7240
 };
 
 
@@ -120,6 +124,8 @@ bool IconvProcessor::init()
 int IconvProcessor::convert(char const * buf, size_t buflen,
 		char * outbuf, size_t maxoutsize)
 {
+	Mutex::Locker lock(&pimpl_->mutex_);
+
 	if (buflen == 0)
 		return 0;